var timer;

function scroll(s) {
	$('slide_image').scrollLeft += s;
}

function stopScroll() {
	clearTimeout(timer);	
}

function scrollToLeft() {
	clearInterval(timer);
	timer = setInterval("scroll(-8)", 50);
}

function scrollToRight() {
	clearInterval(timer);
	timer = setInterval("scroll(8)", 50);
}

function displaySubMenu(id) {
	if ($(id).style.display == 'none') {
		$(id).style.display = 'block';
	} else {
		$(id).style.display = 'none';
	}
}